If boohbah's suggestion of a system restore doesn't work. Try reversing the steps you followed and delete the new wordpad.exe file and rename the wordpad_backup.exe back to wordpad.exe . Then do the same for the new wordpad.exe.mui file. Delete it and rename the wordpad_backup.exe.mui to wordpad.exe.mui. If that doesn't work, the SFC suggested should ultimately work. A Guy